Robust spin correlations at high magnetic fields in the harmonic honeycomb iridates

Modic, K. A.; Ramshaw, Brad J.; Betts, J. B.; Breznay, Nicholas P.; Analytis, James G.; McDonald, Ross David; Shekhter, Arkady

doi:10.1038/s41467-017-00264-6

Title: Robust spin correlations at high magnetic fields in the harmonic honeycomb iridates

Journal Article · Tue Aug 01 00:00:00 EDT 2017 · Nature Communications

DOI:https://doi.org/10.1038/s41467-017-00264-6· OSTI ID:1398919

Modic, K. A. ^[1]; Ramshaw, Brad J. ^[2]; Betts, J. B. ^[3];

^[4]; Analytis, James G. ^[4];

^[3];

^[5]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Max-Planck-Institute for Chemical Physics of Solids, Dresden (Germany)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Cornell Univ., Ithaca, NY (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
Florida State Univ., Tallahassee, FL (United States)

Here, the complex antiferromagnetic orders observed in the honeycomb iridates are a double-edged sword in the search for a quantum spin-liquid: both attesting that the magnetic interactions provide many of the necessary ingredients, while simultaneously impeding access. Focus has naturally been drawn to the unusual magnetic orders that hint at the underlying spin correlations. However, the study of any particular broken symmetry state generally provides little clue about the possibility of other nearby ground states. Here we use magnetic fields approaching 100 Tesla to reveal the extent of the spin correlations in γ-lithium iridate. We find that a small component of field along the magnetic easy-axis melts long-range order, revealing a bistable, strongly correlated spin state. Far from the usual destruction of antiferromagnetism via spin polarization, the high-field state possesses only a small fraction of the total iridium moment, without evidence for long-range order up to the highest attainable magnetic fields.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: AC52-06NA25396; AC02-05CH11231

OSTI ID:: 1398919

Alternate ID(s):: OSTI ID: 1418309

Report Number(s):: LA-UR-17-22098

Journal Information:: Nature Communications, Vol. 8, Issue 1; ISSN 2041-1723

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 22 works

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Correlated states in β-Li2IrO3 driven by applied magnetic fields Ruiz, Alejandro; Frano, Alex; Breznay, Nicholas P. Nature Communications, Vol. 8, Issue 1 https://doi.org/10.1038/s41467-017-01071-9	journal	October 2017
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Pressure-induced structural dimerization in the hyperhoneycomb iridate $β − Li_{2} IrO_{3}$ at low temperatures Veiga, L. S. I.; Glazyrin, K.; Fabbris, G. Physical Review B, Vol. 100, Issue 6 https://doi.org/10.1103/physrevb.100.064104	journal	August 2019
Magnetic structure and excitation spectrum of the hyperhoneycomb Kitaev magnet $β − {Li}_{2} {IrO}_{3}$ Ducatman, Samuel; Rousochatzakis, Ioannis; Perkins, Natalia B. Physical Review B, Vol. 97, Issue 12 https://doi.org/10.1103/physrevb.97.125125	journal	March 2018
Magnetic field induced evolution of intertwined orders in the Kitaev magnet $β − {Li}_{2} {IrO}_{3}$ Rousochatzakis, Ioannis; Perkins, Natalia B. Physical Review B, Vol. 97, Issue 17 https://doi.org/10.1103/physrevb.97.174423	journal	May 2018
Chiral spin order in some purported Kitaev spin-liquid compounds Modic, K. A.; Ramshaw, B. J.; Shekhter, A. Physical Review B, Vol. 98, Issue 20 https://doi.org/10.1103/physrevb.98.205110	journal	November 2018
Spin dynamics and field-induced magnetic phase transition in the honeycomb Kitaev magnet $α − {Li}_{2} {IrO}_{3}$ Choi, Sungkyun; Manni, S.; Singleton, J. Physical Review B, Vol. 99, Issue 5 https://doi.org/10.1103/physrevb.99.054426	journal	February 2019
Pressure-induced collapse of the spin-orbital Mott state in the hyperhoneycomb iridate $β - {Li}_{2} {IrO}_{3}$ Takayama, T.; Krajewska, A.; Gibbs, A. S. Physical Review B, Vol. 99, Issue 12 https://doi.org/10.1103/physrevb.99.125127	journal	March 2019
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